Step 10 shows the plug layout at the bottom of the steering wheel column.
On the back of the radio there’s an 8 pin connection and a 14 pin connection.
My 05 LGT is an automatic so my connections were:
From the 8 pin connector, the wire from position 7(orange and white) will connect with position 6 of the plug at the bottom of the steering column. There was not a wire coming from this position so I had to attach one to make this connection. The wire from position 3( violet and white) will connect with position 7 of the plug at the bottom of the steering column.
From the 14 pin connector, the wire from position 1(purple) will connect with position 2 of the plug at the bottom of the steering column. The wire from position 7(black and white) will connect with position 8 of the plug at the bottom of the steering column.
Hope this helps.